CN211870475U - Heterogeneous section conveyer belt and multi-roller calendering device for producing upper covering layer thereof - Google Patents
Heterogeneous section conveyer belt and multi-roller calendering device for producing upper covering layer thereof Download PDFInfo
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Abstract
The invention discloses a non-homogeneous section conveying belt and a multi-roller calendering device for producing an upper covering layer of the non-homogeneous section conveying belt, wherein the multi-roller calendering device comprises an upper covering layer, a framework layer and a lower covering layer, the upper covering layer is arranged on the outward side of the framework layer, the lower covering layer is arranged on the inward side of the framework layer, the upper covering layer comprises a middle rubber material section and edge rubber material sections positioned on two sides of the middle rubber material section along the width direction of the upper covering layer, and the wear resistance of covering rubber adopted by the middle rubber material section is higher than that of covering rubber adopted by the edge rubber material sections. The invention changes the structure of the upper covering layer of the conveyer belt, adopts high-quality sizing material with high wear resistance to the easily damaged part in the middle of the upper covering layer to ensure the service life of the middle part, and adopts general sizing material to the part with lower wear degree of the edge part of the upper covering layer to reduce the manufacturing cost as much as possible on the premise of ensuring the service life of the edge part.
Description
Technical Field
The invention relates to the technical field of conveying belts, in particular to a non-homogeneous section conveying belt and a multi-roller calendering device for producing an upper covering layer of the non-homogeneous section conveying belt.
Background
The conveyer belt is suitable for the transportation of powdery and blocky materials among various working procedures and working sections, is convenient and quick, has high production efficiency, and is a necessary means for continuously conveying the mass materials in modern mass production.
The adhesive tape framework layer is an adhesive tape strength layer (one of a steel wire rope, a steel wire mesh, laminated canvas and a whole canvas is selected), main tension in the operation process of the adhesive tape is born, the upper covering layer and the lower covering layer play a role in protecting the framework layer, the use of the whole adhesive tape is influenced due to local damage because all parts of the adhesive tape are abraded differently, and the framework layer is abraded due to serious abrasion of the covering layers of some adhesive tapes, so that the whole adhesive tape is scrapped. Therefore, how to improve the service life of the covering layer, especially the durability of the rubber material in the middle of the working surface covering layer, is an important index for designing the adhesive tape.
The existing adhesive tape standards and applied technologies are all flat structures (as shown in fig. 1), the covering layer is of a homogeneous structure, the performances of all parts are consistent, the adhesive tape is not manufactured according to the actual needs of all the parts, the parts which are easy to wear and tear appear to be insufficient in adhesive material performance, the parts which are not easy to wear and tear appear to be redundant in adhesive material performance, the service life of the adhesive tape is insufficient, the cost is high, and a large amount of high-quality resources are wasted because the damaged parts of the adhesive tape are not the whole adhesive tape.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a heterogeneous section conveyor belt and a multi-roller calendering device for producing an upper covering layer of the heterogeneous section conveyor belt.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a non-homogeneous section conveying belt comprises an upper covering layer, a framework layer and a lower covering layer, wherein the upper covering layer is arranged on one outward side of the framework layer, the lower covering layer is arranged on one inward side of the framework layer, the upper covering layer comprises a middle rubber material section and edge rubber material sections located on two sides of the middle rubber material section in the width direction of the upper covering layer, the wear resistance of covering rubber adopted by the middle rubber material section is higher than that of covering rubber adopted by the edge rubber material section, and the wear loss of the covering rubber adopted by the edge rubber material section is smaller than or equal to 200mm3。
As a preferable aspect of the non-homogeneous section conveyor belt of the present invention, wherein: the edge rubber material section in the width direction of the upper covering layer comprises a plurality of edge rubber material sections, and the wear resistance of the covering rubber adopted by the edge rubber material sections is sequentially reduced from the middle part of the upper covering layer to the edge part.
As a preferable aspect of the non-homogeneous section conveyor belt of the present invention, wherein: the width of the middle glue segment accounts for 45-55% of the width of the upper covering layer.
The utility model provides a multi-roll calendering device for produce any above-mentioned in the heterogeneous section conveyer belt go up the overlay layer, include at least three can be around its axis rotatory compression roller, the axis of compression roller all is parallel to each other, the compression roller is arranged in proper order, makes adjacent two all form the roll gap between the compression roller, just the width of roll gap diminishes in proper order, is located the widest the front end of roll gap is provided with the baffle, the baffle is including being located the tip baffle at roll gap both ends and being located two piece at least middle part baffles between the tip baffle, the tip baffle and the one end of middle part baffle all extends in the roll gap.
As a preferable aspect of the multi-roll calendering apparatus of the present invention, wherein: and end baffles are arranged at the rear ends of the narrowest roll gaps and are positioned at the two ends of the corresponding roll gaps.
As a preferable aspect of the multi-roll calendering apparatus of the present invention, wherein: the middle baffle and the end baffles can translate along the axial direction of the corresponding press roller.
As a preferable aspect of the multi-roll calendering apparatus of the present invention, wherein: the end baffle and the middle baffle are made of stainless steel, and the thickness of the end baffle and the thickness of the middle baffle are 5-10 mm.
The invention has the beneficial effects that:
(1) the structure of the upper covering layer of the conveyer belt is changed, the parts which are easy to damage and positioned in the middle of the upper covering layer are made of high-quality sizing materials with high wear resistance, so that the service life of the middle part is ensured, the parts which are low in degree of wear of the edge of the upper covering layer are made of common sizing materials, and the manufacturing cost is reduced as much as possible on the premise of ensuring the service life of the edge, so that the service life of the conveyer belt is prolonged by more than 3 times compared with the original service life, and the manufacturing cost is low;
(2) according to the invention, for a wider conveyer belt, the edge rubber can be divided into a plurality of sections of edge rubber for segmentation, and the wear resistance of the cover rubber adopted by the plurality of sections of edge rubber for segmentation is sequentially reduced from the middle part of the upper cover layer to the edge part, so that the manufacturing cost of the conveyer belt is reduced on the premise of ensuring longer service life of the conveyer belt;
(3) the upper covering layer is prepared by the special multi-roll calendering device, the device divides a roll gap serving as a sizing material inlet into a plurality of sizing material adding ports through a plurality of baffle plates according to the bandwidth distribution of the upper covering layer, the types of sizing materials added by each sizing material adding port can be different, so that a plurality of sizing materials are mixed and adhered with each other in the roll gap behind the baffle plates, the aim of seamless transition is fulfilled, and the rubber sheet with the heterogeneous section is formed;
(4) the width of a plurality of roll gaps is reduced in sequence, the roll gap positioned at the front end performs rough pressing on the rubber material and supplies material for the next roll gap, so that the rubber material is subjected to multiple fine pressing, and the quality and the stability of the prepared rubber sheet are ensured;
(5) the baffle plate can translate along the axial direction of the press roller, so that the widths of different sizing material sections and the types of sizing materials can be adjusted, and higher preparation requirements can be met;
(6) according to the invention, the baffle is made of stainless steel, the thickness is regulated to be 5-10mm, the baffle is prevented from being deformed due to too thin baffle, the purpose of blocking sizing materials cannot be achieved, and the phenomenon that the distance of a transition region is increased due to too thick baffle, so that the mixing and melting effect of two adjacent sizing materials is influenced is also avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a non-homogeneous cross-section conveyor belt according to a first embodiment of the present invention;
FIG. 2 is a schematic view of the operation of a multi-roll calendering apparatus according to a first embodiment of the present invention;
FIG. 3 is a schematic view of the structure in the direction A of FIG. 2;
FIG. 4 is a schematic view of the structure in the direction B in FIG. 2;
FIG. 5 is a side view of FIG. 3;
FIG. 6 is a schematic structural diagram of a second embodiment of a non-homogeneous cross-section conveyor belt according to the present invention;
FIG. 7 is a schematic structural diagram of a second embodiment of a non-homogeneous cross-section conveyor belt according to the present invention;
wherein: 1. an upper cladding layer; 2. a framework layer; 3. a lower cover layer; 4. edge glue; 5. a middle glue section; 6. an edge glue section; 7. a first press roll; 8. a second press roll; 9. a third press roll; 10. a first roll gap; 11. a second roll gap; 12. an end baffle; 13. a middle baffle; 14. using glue to optimize the section; 15. using glue to perform a better section; 16. generally using a glue section; 17. working surface of special-grade sizing material; 18. a class H sizing material working surface; 19. d-level sizing material working surface; 20. and (4) an L-grade sizing material working surface.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
The existing adhesive tape standards and applied technologies are all flat structures (as shown in fig. 1), the covering layer is of a homogeneous structure, the performances of all parts are consistent, the adhesive tape is not manufactured according to the actual needs of all the parts, the parts which are easy to wear and tear appear to be insufficient in adhesive material performance, the parts which are not easy to wear and tear appear to be redundant in adhesive material performance, the service life of the adhesive tape is insufficient, the cost is high, and a large amount of high-quality resources are wasted because the damaged parts of the adhesive tape are not the whole adhesive tape.
At present, the covering rubber for the conveying belt is generally divided into three grades, namely: h grade (strength is more than or equal to 24MPa, elongation is more than or equal to 450%, abrasion is less than or equal to 120 mm)3) D grade (strength is more than or equal to 18MPa, elongation is more than or equal to 400 percent, abrasion is less than or equal to 100 mm)3) And L grade (strength is more than or equal to 15MPa, elongation is more than or equal to 350 percent, abrasion is less than or equal to 200 mm)3) The specific information can be referred to relevant standards such as GB/T7984-2013 or GB/T9770-2013 or HG/T3646-2014. Wherein the H-grade sizing material is suitable for sharp abrasion materials which have strong damage to the adhesive tape; the D-grade sizing material is suitable for materials with high abrasiveness to the adhesive tape; the L-grade sizing material is suitable for materials with moderate abrasion to the adhesive tape.
Among the above-mentioned rubber compounds, the class H rubber compound has the best combination property and the best durability, and the class D rubber compound has the second grade, and the class L rubber compound is a general rubber compound. In addition, the existing special-grade rubber material with the strength of more than or equal to 27MPa, the elongation of more than or equal to 500 percent and the abrasion of less than or equal to 40mm3 has the composition and the mass percent shown in the table 1, and has the advantages of special comprehensive performance, special durability and further obtained cost performanceThe improvement is the development direction of the conveyer belt covering layer in future.
| Materials for use | Dosage (weight ratio) |
| Malaysia No. one smoked sheet | 70 |
| Cis-polybutadiene BR9000 | 30 |
| 800-mesh sulfur powder | 1.45 |
| Accelerant NOBS | 0.9 |
| 99.5% | 7 |
| Industrial first grade stearic acid | 1.75 |
| Anti-aging agent 4010NA | 2 |
| Antiager RD | 1.75 |
| Anti-aging agent 4020 | 0.6 |
| Protective wax | 1 |
| N234 carbon Black | 20 |
| DN-1 carbon Black | 20 |
| N220 carbon Black | 15 |
| Total up to | 171.45 |
TABLE 1
In view of the above, the first embodiment of the present invention provides a heterogeneous cross-section conveyor belt, which includes an upper covering layer 1, a framework layer 2, and a lower covering layer 3, wherein the upper covering layer 1 is disposed at the upper end of the framework layer 2, and the lower covering layer 3 is disposed at the lower end of the framework layer 2. The end part of the framework layer 2 is also provided with edge glue 4, the layer structures are molded and pressed together to form a belt blank on a production line, and then the belt blank is vulcanized by a flat plate to form a finished product. The upper covering layer 1 is divided into three sections along the width direction, namely a middle glue section 5 and edge glue sections 6 positioned at two sides of the middle glue section 5, wherein the middle glue section 5 adopts a higher level of covering glue than the edge glue sections 6, namely the middle glue section 5 can adopt D-level glue, and the edge glue sections 6 adopt L-level glue; or the middle sizing section 5 adopts H-level sizing material, and the edge sizing section 6 adopts D-level sizing material; or the middle part sizing material section 5 adopts special-grade sizing material, and the edge part sizing material section 6 adopts H-grade sizing material according to the working condition.
The parts which are easy to damage and positioned in the middle of the upper covering layer 1 are made of high-quality sizing materials with high wear resistance, so that the service life of the middle part is ensured, and the parts which are low in wear degree of the edges of the upper covering layer 1 are made of common sizing materials, so that the manufacturing cost is reduced as much as possible on the premise that the service life of the edges is ensured. Therefore, the invention prolongs the service life of the conveyer belt by more than 3 times compared with the prior art, and has lower manufacturing cost.
It should be noted that the width of the middle glue segment 5 accounts for 45-55% of the width of the upper cover layer 1.
Referring to fig. 2 to 5, the present embodiment also provides a multi-roll calendering apparatus for producing an upper cladding layer 1, which includes a first press roll 7, a second press roll 8 and a third press roll 9 rotatable along axes, the axes of the three press rolls being parallel to each other. A first roll gap 10 is formed between the first pressing roll 7 and the second pressing roll 8, a second roll gap 11 is formed between the second pressing roll 8 and the third pressing roll 9, and the width of the second roll gap 11 is smaller than that of the first roll gap 10. Two end baffles 12 and two middle baffles 13 are arranged at the front end of the first roll gap 10, the two end baffles 12 are positioned at the left side and the right side of the first roll gap 10, and the two middle baffles 13 are positioned between the two end baffles 12. One end of each of the end baffle 12 and the middle baffle 13 extends into the first roll gap 10, and the shape of the end of each baffle extending into the first roll gap 10 is matched with the shape of the roll gap.
It should be noted that both the end baffles 12 and the middle baffles 13 can translate along the axial direction of the first pressing roller 7 and the second pressing roller 8, so as to adjust the distance between the adjacent baffles, so that the distance between the two middle baffles 13 is equal to the width of the middle glue section 5, and the distance between the middle baffle 13 and the end baffle 12 adjacent thereto is equal to the width of the edge glue section 6.
Two baffle end parts are arranged at the rear end of the second roll gap 11, two end baffles 12 are positioned at the left side and the right side of the second roll gap 11, and one ends of the two end baffles 12 also extend into the second roll gap 11.
It should be noted that the end portions of the end portion baffle 12 and the middle portion baffle 13 which are positioned in the roll gap are positioned at the connecting line of the centers of the two press rolls of the roll gap, so that the front half section of the roll gap forms a separation area, and the rear half section forms a transition area, thereby avoiding the situation that the transition area is too large, and easily enabling one glue material to permeate into the other glue material, which does not achieve the purpose of the invention; and the phenomenon that the mixing and melting effects among different rubber materials are influenced due to material shortage or insufficient material consumption of the transition zone caused by undersize of the transition zone is also avoided.
In addition, the end baffle 12 is made of nylon and has a thickness of 25-30 mm. The middle baffle 13 is made of stainless steel materials, the thickness of the middle baffle is 5-10mm, the baffle is prevented from being deformed due to too thin baffle, the purpose of blocking sizing materials cannot be achieved, and the phenomenon that the distance of a transition area is increased due to too thick baffle, so that the mixing effect of two adjacent sizing materials is influenced is also avoided.
The embodiment also provides a use method of the multi-roll calendering device, which comprises the following steps:
s1: adjusting the positions of the end baffles 12 and the middle baffles 13 according to the widths of the middle glue section 5 and the edge glue section 6 of the produced conveyor belt;
s2: putting the glue adopted by the middle glue section 5 and the edge glue section 6 between the corresponding baffles, and rotating the compression roller;
s3: the rubber material is pressed through a first roll gap 10 to form a rubber rough rubber sheet, then sequentially passes through a second roll gap 11 at the rear part, and the rubber rough rubber sheet is subjected to fine pressing to obtain a rubber sheet after pressing;
s4: and processing and cutting the rubber film to obtain the upper covering layer 1.
It should be noted that, when the material is fed, a certain amount of residual glue needs to be ensured on the second roll seam 11 so as to facilitate the compaction and the dimensional stability of the glue material, the residual glue amount is preferably 3 to 5 cm in diameter, the glue material is prone to shifting when the residual glue amount is too large, and the glue material is prone to being not compacted and lacking when the residual glue amount is too small.
Referring to fig. 6, a second embodiment of the non-uniform cross-section conveyor belt according to the present invention is different from the first embodiment in that: in this embodiment, the upper cover layer 1 is divided into five sections along the width direction thereof, which is suitable for the production of middle-width adhesive tapes (with a width of 800-. Wherein, the grades of the glue materials adopted by the optimal glue section 14, the optimal glue section 15 and the general glue section 16 are sequentially increased.
Specifically, the non-homogeneous section conveyor belt comprises an upper covering layer 1, a framework layer 2 and a lower covering layer 3, wherein the upper covering layer 1 is arranged at the upper end of the framework layer 2, and the lower covering layer 3 is arranged at the lower end of the framework layer 2. The upper covering layer 1 is divided into five sections along the width direction, namely an optimal section 14 for glue located in the middle, preferred sections 15 for glue located on two sides of the optimal section 14 for glue and general sections 16 for glue located on two sides of the preferred sections 15 for glue. The rubber material grades adopted by the rubber optimal section 14, the rubber optimal section 15 and the general rubber section 16 are respectively H-grade, D-grade and L-grade or special-grade rubber material, H-grade and D-grade. Depending on the operating conditions.
The present embodiment also provides a multi-roll calendering apparatus for producing an upper cladding layer 1, which apparatus comprises a first press roll 7, a second press roll 8 and a third press roll 9 rotatable along axes, the axes of the three press rolls being parallel to each other. A first roll gap 10 is formed between the first pressing roll 7 and the second pressing roll 8, a second roll gap 11 is formed between the second pressing roll 8 and the third pressing roll 9, and the width of the second roll gap 11 is smaller than that of the first roll gap 10. Two end baffles 12 and four middle baffles 13 are arranged at the front end of the first roll gap 10, the two end baffles 12 are positioned at the left side and the right side of the first roll gap 10, and the four middle baffles 13 are sequentially arranged between the two end baffles 12 along the axial direction of the press roll. One end of each of the end baffle 12 and the middle baffle 13 extends into the first roll gap 10, and the shape of the end of each baffle extending into the first roll gap 10 is matched with the shape of the roll gap.
It should be noted that both the end baffles 12 and the middle baffles 13 can translate along the axial direction of the first press roll 7 and the second press roll 8, so as to adjust the distance between the adjacent baffles, so that the distance between the two middle baffles 13 located at the most middle part is equal to the width of the optimal glue section 14, the distance between the two middle baffles 13 located at both sides and the middle baffle 13 located at the middle part adjacent thereto is equal to the width of the optimal glue section 15, and the distance between the two middle baffles 13 located at both sides and the end baffle 12 adjacent thereto is equal to the width of the general glue section 16.
Two baffle end parts are arranged at the rear end of the second roll gap 11, two end baffles 12 are positioned at the left side and the right side of the second roll gap 11, and one ends of the two end baffles 12 also extend into the second roll gap 11.
It should be noted that the end portions of the end portion baffle 12 and the middle portion baffle 13 which are positioned in the roll gap are positioned at the connecting line of the centers of the two press rolls of the roll gap, so that the front half section of the roll gap forms a separation area, and the rear half section forms a transition area, thereby avoiding the situation that the transition area is too large, and easily enabling one glue material to permeate into the other glue material, which does not achieve the purpose of the invention; and the phenomenon that the mixing and melting effects among different rubber materials are influenced due to material shortage or insufficient material consumption of the transition zone caused by undersize of the transition zone is also avoided.
In addition, the end baffle 12 is made of nylon, the thickness of the end baffle is 25-30mm, the middle baffle 13 is made of stainless steel, the thickness of the middle baffle is 5-10mm, the baffle is prevented from being deformed due to too thin baffle, the purpose of blocking sizing materials cannot be achieved, and the phenomenon that the distance of a transition area is increased due to too thick baffle, so that the mixing and melting effects of two adjacent sizing materials are influenced is avoided.
The embodiment also provides a use method of the multi-roll calendering device, which comprises the following steps:
s1: adjusting the positions of the end baffles 12 and the middle baffles 13 according to the widths of the middle glue section 5 and the edge glue section 6 of the produced conveyor belt;
s2: putting the glue adopted by the middle glue section 5 and the edge glue section 6 between the corresponding baffles, and rotating the compression roller;
s3: the rubber material is pressed through a first roll gap 10 to form a rubber rough rubber sheet, then sequentially passes through a second roll gap 11 at the rear part, and the rubber rough rubber sheet is subjected to fine pressing to obtain a rubber sheet after pressing;
s4: and processing and cutting the rubber film to obtain the upper covering layer 1.
It should be noted that, when the material is fed, a certain amount of residual glue needs to be ensured on the second roll seam 11 so as to facilitate the compaction and the dimensional stability of the glue material, the residual glue amount is preferably 3 to 5 cm in diameter, the glue material is prone to shifting when the residual glue amount is too large, and the glue material is prone to being not compacted and lacking when the residual glue amount is too small.
Referring to fig. 7, a third embodiment of the non-uniform cross-section conveyor belt according to the present invention is different from the second embodiment in that: in this embodiment, the upper cover layer 1 is divided into seven sections along the width direction thereof, is suitable for the production of wider tapes (the width is more than or equal to 1600mm), and is respectively a special-grade sizing material working surface 17 located in the middle, H-grade sizing material working surfaces 18 located on both sides of the special-grade working surface, a D-grade working surface located outside the H-grade sizing material working surface 18, and an L-grade working surface located outside the D-grade working surface.
The present embodiment also provides a multi-roll calendering apparatus for producing an upper cladding layer 1, which apparatus comprises a first press roll 7, a second press roll 8 and a third press roll 9 rotatable along axes, the axes of the three press rolls being parallel to each other. A first roll gap 10 is formed between the first pressing roll 7 and the second pressing roll 8, a second roll gap 11 is formed between the second pressing roll 8 and the third pressing roll 9, and the width of the second roll gap 11 is smaller than that of the first roll gap 10. Two end baffles 12 and four middle baffles 13 are arranged at the front end of the first roll gap 10, the two end baffles 12 are positioned at the left side and the right side of the first roll gap 10, and the six middle baffles 13 are sequentially arranged between the two end baffles 12 along the axial direction of the press roll. One end of each of the end baffle 12 and the middle baffle 13 extends into the first roll gap 10, and the shape of the end of each baffle extending into the first roll gap 10 is matched with the shape of the roll gap.
It should be noted that both the end baffle 12 and the middle baffle 13 can translate along the axial direction of the first pressing roller 7 and the second pressing roller 8, so as to adjust the distance between two adjacent baffles, and the distance between two adjacent baffles is equal to the width of the corresponding working surface.
Two baffle end parts are arranged at the rear end of the second roll gap 11, two end baffles 12 are positioned at the left side and the right side of the second roll gap 11, and one ends of the two end baffles 12 also extend into the second roll gap 11.
It should be noted that the end portions of the end portion baffle 12 and the middle portion baffle 13 which are positioned in the roll gap are positioned at the connecting line of the centers of the two press rolls of the roll gap, so that the front half section of the roll gap forms a separation area, and the rear half section forms a transition area, thereby avoiding the situation that the transition area is too large, and easily enabling one glue material to permeate into the other glue material, which does not achieve the purpose of the invention; and the phenomenon that the mixing and melting effects among different rubber materials are influenced due to material shortage or insufficient material consumption of the transition zone caused by undersize of the transition zone is also avoided.
In addition, the end baffle 12 is made of nylon, the thickness of the end baffle is 25-30mm, the middle baffle 13 is made of stainless steel materials, the thickness of the middle baffle is 5-10mm, the baffle is prevented from being deformed due to too thin baffle, the purpose of blocking sizing materials cannot be achieved, and the phenomenon that the distance of a transition area is increased due to too thick baffle, so that the mixing and melting effects of two adjacent sizing materials are influenced is avoided.
The embodiment also provides a use method of the multi-roll calendering device, which comprises the following steps:
s1: adjusting the positions of the end baffles 12 and the middle baffles 13 according to the widths of the middle glue section 5 and the edge glue section 6 of the produced conveyor belt;
s2: putting the glue adopted by the middle glue section 5 and the edge glue section 6 between the corresponding baffles, and rotating the compression roller;
s3: the rubber material is pressed through a first roll gap 10 to form a rubber rough rubber sheet, then sequentially passes through a second roll gap 11 at the rear part, and the rubber rough rubber sheet is subjected to fine pressing to obtain a rubber sheet after pressing;
s4: and processing and cutting the rubber film to obtain the upper covering layer 1.
It should be noted that, when the material is fed, a certain amount of residual glue needs to be ensured on the second roll seam 11 so as to facilitate the compaction and the dimensional stability of the glue material, the residual glue amount is preferably 3 to 5 cm in diameter, the glue material is prone to shifting when the residual glue amount is too large, and the glue material is prone to being not compacted and lacking when the residual glue amount is too small.
In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (7)
1. A non-homogeneous cross-section conveyor belt comprising an upper cover layer, a carcass layer and a lower cover layer, the upper cover layer being disposed on an outward side of the carcass layer, the lower cover layer being disposed on an inward side of the carcass layer, characterized in that: the upper covering layer comprises a middle rubber section and edge rubber sections positioned on two sides of the middle rubber section along the width direction of the upper covering layer, the wear resistance of the covering rubber adopted by the middle rubber section is higher than that of the covering rubber adopted by the edge rubber section, and the wear loss of the covering rubber adopted by the edge rubber section is less than or equal to 200mm3。
2. A non-homogenous cross section conveyor belt as in claim 1 wherein: the edge rubber material section in the width direction of the upper covering layer comprises a plurality of edge rubber material sections, and the wear resistance of the covering rubber adopted by the edge rubber material sections is sequentially reduced from the middle part of the upper covering layer to the edge part.
3. A non-homogeneous cross-section conveyor belt according to claim 1 or 2, wherein: the width of the middle glue segment accounts for 45-55% of the width of the upper covering layer.
4. A multi-roll calendering apparatus for producing the upper cladding layer in the non-homogeneous cross-section conveyor belt according to claim 1 or 2, wherein: including at least three compression roller that can wind its axis rotation, the axis of compression roller is all parallel mutually, the compression roller is arranged in proper order, makes adjacent two all form the roll gap between the compression roller, just the width of roll gap is steadilyd decrease in proper order, is located the widest the front end of roll gap is provided with the baffle, the baffle is including being located the tip baffle at roll gap both ends and being located two piece at least middle part baffles between the tip baffle, the tip baffle and the one end of middle part baffle all extends in the roll gap.
5. A multi-roll calendering apparatus according to claim 4, wherein: and end baffles are arranged at the rear ends of the narrowest roll gaps and are positioned at the two ends of the corresponding roll gaps.
6. A multi-roll calendering apparatus according to claim 4, wherein: the middle baffle and the end baffles can translate along the axial direction of the corresponding press roller.
7. A multi-roll calendering apparatus according to claim 4, wherein: the end baffle is made of nylon, the thickness of the end baffle is 25-30mm, the middle baffle is made of stainless steel, and the thickness of the middle baffle is 5-10 mm.
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| CN201922023032.4U CN211870475U (en) | 2019-11-21 | 2019-11-21 | Heterogeneous section conveyer belt and multi-roller calendering device for producing upper covering layer thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745459A (en) * | 2019-11-21 | 2020-02-04 | 江苏凯嘉橡胶科技股份有限公司 | Heterogeneous section conveyer belt |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745459A (en) * | 2019-11-21 | 2020-02-04 | 江苏凯嘉橡胶科技股份有限公司 | Heterogeneous section conveyer belt |
| CN110745459B (en) * | 2019-11-21 | 2024-03-15 | 江苏凯嘉橡胶科技股份有限公司 | Non-homogeneous section conveyer belt |
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